TM 10-1670-296-20&P 0023 00
Place timer delay on working area and remove the two screws holding mounting block to housing.
Lift mounting block with timer and stem assembly out of housing.
An internal interference problem with the timer delay assembly provided
as a spare part component has been identified. The internal toggle
makes contact with the key channel and prevents the timer from
functioning properly and retracting the keys. The timer delay assembly
can be identified by NSN 1670-01-099-2380, Part Number 11-1-894-1,
Contract Number DAAJ09-83-C-B848, Cage Code 3N257, Hansen
MFG. If found, dispose of IAW local procedures.
Remove three screws (3) from outside holding timer assembly to mounting block.
Lift damaged timing movement from timer block.
Once identified, determine if there are signs of marks where the toggle has rubbed up against the
channel in which the key slides. If found, the timer delay must be taken out of service and replaced.
2. Reassemble timer delay.
Insert stem hole of new timer movement in mounting block. Rotate timer and stem assembly so
three square sides are even with the top, end, and bottom sides of the mounting block.
If the actuator pin (4) will not fit into the slot of the short key, clean the
tip of the actuator pin with a crocus cloth.
Insert mounting screws through three screw holes in mounting block into timer and stem.